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Words for Academic IELTS - Lesson 20
Here you will learn some English words about chemistry, such as "arsenic", "catalyst", "distill", etc. that are needed for the IELTS exam.
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arsenic
[noun]
a poisonous chemical element with properties of both metals and nonmetals that is grey in color, used in industry or as a pesticide
copper
[noun]
a metallic chemical element that has a red-brown color, primarily used as a conductor in wiring
catalyst
[noun]
(chemistry) a substance that causes a chemical reaction to happen at a faster rate without undergoing any chemical change itself
mixture
[noun]
(chemistry) a combination of two or more substances without forming a chemical bond or any chemical reaction
to adsorb
[verb]
to take in a liquid, gas, or other substance from the surface chemically or physically
chain reaction
[noun]
a chemical or nuclear process that is self-sustained and its products cause other processes of the same kind
to distill
[verb]
to heat a liquid and turn it into gas then cool it and make it liquid again in order to purify it
equation
[noun]
(chemistry) a symbolic representation of a chemical reaction that consists of the reactants and products
reaction
[noun]
(chemistry) a process in which several chemicals combine and form different substances
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